UPD784218 Datasheet, PDF (54/92 Pages) NEC – 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784218, 784218Y
Figure 11-1. Standby Function State Transition
Macro
service
Low
power
consumption
HALT mode
(Standby)
Low power consumption HALT mode set _{Low power}
consumption
mode
Interrupt request^{Note 1}
(Subsystem
clock operation)
Low power consumption
IDLE mode set
Low power
NMI, INTP0 to INTP6 input, ^consumption
INTWT, key return interrupt^{Note 2}
IDLE mode
(Standby)
Interrupt
request for
masked interrupt
RESET ^input
Interrupt
request for
masked interrupt
Normal
operation
(Main system
clock
operation)
Macro service request
One time processing ends
Macro service ends
Macro
service
STOP ^set
STOP
(Standby)
Interrupt
request for
masked
interrupt
IDLE
(Standby)
INTWNMT,I,kIeNyTrPeR0tEutrSonEIiNTntTeinPrpr6uupitntp_{Nuott,e 2}
Interrupt
request
for
masked
interrupt
Wait for
stable
oscillation
Interrupt
request
for
masked
interrupt
RESET ^input
HALT
(Standby)
Notes 1. Only unmasked interrupt requests
2. Only unmasked INTP0 to INTP6, INTWT, key return interrupt (P80 to P87)
Remark NMI is valid only for an external input.
The watchdog timer cannot be used for the release of standby (HALT mode/STOP mode/IDLE mode).
54
Data Sheet U12304EJ2V0DS00